Viessmann VITODENS 200-W Installation And Service Instructions Manual page 11

Mounting the boiler and making connections
4x
6.
5.
4.
Fig. 4
3. Remove the installation kit from the gas pipe.
4. Remove the protective caps from the hydraulic
connections and gas connection.
Note
Do not remove the protective caps until you are
about to commence installation.
(cont.)
3.
5. Fit the O-rings from the installation kit to the
6. Lubricate the O-rings with the valve grease sup-
hydraulic connections.
plied. Do not use any other agent.
Installation sequence
11